REPTILIA. 247 
LYTOLOMA. (continucd)— 
planimentum (Owen), R. Lydekker, Cat. Foss. Rept. B. My 
pt. iii, 1889, p. 64. [See also L. crassicostatum.] 
Chelone planimentum, R. Owen (pars), Rep. Brit. Assoc., 1841 
(1842), p. 178, and Proc. Geol. Soc., vol. iii (1841), p. 576, 
and Rept. London Clay, pt. i (Pal. ’Soc., 1849), pp. 25, 40, 
pls. ix, x, x A, and Brit. Foss. Rept., vol. i (1884), p25, pls. 
XVI11, XIX (Chelonia) ; J. Morris, Cat. Brit. Foss., 1854, p. 348. 
Chelone breviceps, R. Owen (pars), Rept. London Clay, pt. i 
(Pal. Soc., 1849), p. 10, pl. 1, and Brit. Foss. Rept., vol. ii 
(1884), pls. i, xvi, xvii, f. 6 (Chelonia). [Skeleton ; Brit. Mus. | 
Chelone convexa, R. Owen (pars), Rept. London Clay, pt. i (Pal. 
Soc., 1849), p. 22, pl. vi, f. 4, pl. vii, f. 3. [Mandible.] 
Thalassochelys planimentum, E,. D. Cope, Trans. Amer. Phil. 
Soc., vol. xiv (1870), p. 146. 
Pachyvrhynchus planimentum, L. Dollo, Bull. Mus. Roy. Hist. 
Nat. Belge, vol. iv, 1886, p. 138. 
Puppigerus breviceps, E. D. Cope (pars), Trans. Amer. Phil. 
Soc., vol. xiv (1870), p. 235. 
Chelor.t2 harvicensis, S. Woodward, Syn. Tab., 1830, p. 38, pl. 
Glossochelys harvicensis, H. G. Seeley, Ann. Mag. Nat. Hist. [4] 
vol. vill, 1871, p. 232, woodcut. T. (Glossochelys.) 
Emys parkinsonii, J. E. Gray (pars), Syn. Rept., 1831, p. 33- 
[Skull ; o/mz F. Dixon Coll.] 
‘Fossil head of tortoise,’ J. Parkinson, Organic Remains, vol. 111, 
ISi1, p. 270, pl. xviii, f. 3. 
Loc. Lendon Clay; Harwich and Sheppey. [Skull ; Wood- 
wardian Mus. | 
trigoniceps (Owen), R. Lydekkev, Cat. Foss. Rept. B. M., pt. ii, 
1889, p. 53- 
Chelone trigoniceps, R. Owen, Rept. London Clay, pt. i (Pal. 
Soc., 1849), p. 31, and in F. Dixon, Geol. SSS Che p- 218, 
pl. xii, f. 4-7, 11 (zon 8-10), and ed. 2, 1878, p. 263, pl. xiil 
[14], f. 4-7 and 11 (8, 9, 9, and 10, referred to C. longiceps) ; 
J. Morris, Cat. Brit. Foss., 1854, p. 348. 
Chelone acuticeps, R. Owen, Brit. Foss. Rept., vol. ii (1884), 
descr. to pl. xxv, f. 8, 10, 18 (Chelonia). 
Pachyrhynchus trigoniceps, L. Dollo, Bull. Mus. Roy. Hist. Nat. 
Belge, vol. iv (1886), p. 138. 
Chelone sp., R. Owen, Rept. London Clay, pt. ii (Pal. Soc., 1850) 
descr. to pl. xxix, f. 3, 4. [Quadrate bone, etc. ; Brit. Mus.’ 
Loc. Bracklesham Beds. [Cranium.] 
Sp., R. Lydekker, Cat. Foss. Rept. B. M., pt. iii, 1889, p. 68. 
Chelone sp., R. Owen, Rept. Cret. Form. (Pal. Soc., 1851), 
Deut pl awash. 455 
Euclastes sp., L. Dollo, Ann. Soc. Géol. Nord, vol. xv, 1888, p. 122 
Loc. Chalk; Halling, Kent. [Mandible ; Brit. Mus., no. 39113-] 
